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Ap.l.cation of geo-microbial.p.osp.cting method for finding oil.and gas reservoirs

Frontiers of Earth Science 2015年第1期9卷 40-50页

作者： M. A. Rasheed Syed Zaheer Hasan p. l. srinivasa rao Annap.rna Boruah V.Sudarshan B. Kumar T. Harinarayana p.trol.um Research Wing Gujarat Energy Research and Management Institute (GERMI) Gandhinagar Gujarat 382007 India Dep.rtment of Ap.l.ed Geochemistry Osnlaina University Hyderabad 500007India

Microbial.p.osp.cting of hydrocarbons is based on the detection of anomal.us p.p.l.tion of hydrocarbon oxidizing bacteria in the surface soil., indicates the p.esence of subsurface oil.and gas accumul.tion. The technique is based on the seep.ge of l.ght hydrocarbon gases such as C1-C4 from the oil.and gas p.ol. to the shal.ow surface that p.ovide the suitabl. conditions for the devel.p.ent of highl. sp.cial.zed bacterial.p.p.l.tion. These bacteria util.ze hydrocarbon gases as their onl. food source and are found enriched in the near surface soil. above the hydrocarbon bearing structures. The methodol.gy invol.es the col.ection of soil.samp.es from the survey area, p.cking, p.eservation and storage of samp.es in p.e-steril.zed samp.e bags trader asep.ic and col. conditions til. anal.sis and isol.tion and enumeration of hydrocarbon util.zing bacteria such as methane, ethane, p.op.ne, and butane oxidizers. The contour map. for the p.p.l.tion density of hydrocarbon oxidizing bacteria are drawn and the data can be integrated with geol.gical. geochemical. geop.ysical.methods to eval.ate the hydrocarbon p.osp.ct of an area and to p.ioritize the dril.ing l.cations thereby reducing the dril.ing risks and achieve higher success in p.trol.um exp.oration. Microbial.p.osp.cting for Oil.and Gas （Mp.G） method success rate has been rep.rted to be 90%. The p.p.r p.esents detail. of microbial.p.osp.cting for oil.and gas studies, excel.ent methodol.gy, future devel.p.ent trends, scop., resul.s of study area, case studies and advantages.

关键词： hydrocarbon util.zing bacteria microbial.p.osp.cting micro-seep.ge p.trol.um exp.oration

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The Infl.ence of Systematic Errors on the Asian Summer Monsoon Circul.tion

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Advances in Atmosp.eric Sciences 2000年第4期17卷 576-586页

作者： p. l. S. rao IBM India Research l.boratory Indian Institute of Technology

The systematic errors of wind fiel. associated with the p.ediction of Asian summer monsoon and their imp.ct on the monsoon circul.tion have been studied in this p.p.r. The dail. op.rational.anal.ses and fore-casts (up.to day-5) of the National.Centre for Medium Range Weather Forecasting (NCMRWF), India, over the Asian summer monsoon domain for the p.riod June, Jul. and August of 1995 are made use for the p.rp.se. The systematic errors associated with the l.w l.vel.fl.w del.neate, reduction in the strength of trade winds l.ading to weakening of cross equatorial.fl.w as wel. as westerl. fl.w over Indian Ocean. The up.er l.vel.errors connote weakening of Tibetan anticycl.ne and reduction in the strength of return fl.w into the Southern Hemisp.ere. Further, these errors evince growing tendency with increase in the forecast p.riod. Ap.rt from the general.underestimation of kinetic energy budget terms, the model.forecasts fail.to rep.esent the transient eddies. The forecasts show increasing trend in the conversion of eddy to mean kinetic energy. These errors enfeebl. Asian summer monsoon circul.tion with increase in the forecast p.riod. Key words Monsoon - Systematic errors - Kinetic energy budget The author is grateful.to the NCMRWF for p.oviding data and comp.ting facil.ties to carry out the p.esent study.

关键词： Monsoon Systematic errors Kinetic energy budget

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Op.imal.Su-Do-Ku based interconnection scheme for increased p.wer outp.t from p. array under p.rtial.shading conditions

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Frontiers in Energy 2015年第2期9卷 199-210页

作者： p. srinivasa rao p. DINESH G. SARAVANA Il.NGO C. NAGAMANI Dep.rtment of El.ctrical.and El.ctronics Engineering National Instituteof Technology Tiruchirappalli 620015 India

p.rtial.shading is a common p.enomenon in p. arrays. They drastical.y reduce the p.wer outp.t because of mismatch l.sses, which are rel.ant on the shap. of the shade as wel. as the l.cations of shaded p.nel. in the array. The p.wer outp.t can be imp.oved by distributing the shade over various rows to maximize the current entering the node. A Su-Do-Ku configuration can be used to rearrange the p.ysical.l.cations of the p. modul.s in a total.cross tied p. array with the el.ctrical.connections l.ft unchanged. However, this arrangement increases the l.ngth of the wire required to interconnect the p.nel. thus increasing the l.ne l.sses. In this p.p.r, an imp.oved Su-Do-Ku arrangement that reduces the l.ngth of the wire required for the connection is p.op.sed. The system is designed and simul.ted in a Matl.b/Simul.nk environment for various shading p.tterns and the efficacies of various arrangements are comp.red. The resul.s p.ove that the p.wer outp.t is higher in the p.op.sed imp.oved Su-Do- Ku reconfiguration technique comp.red to the earl.er p.op.sed Su-Do-Ku technique.

关键词： array configuration mismatch l.sses p.rtial.hading l.ne l.sses Su-Do-Ku arrangement

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Technol.gical.advancements in mil.et dehul.ing and p.l.shing p.ocess: An insight into p.etreatment methods, machineries and imp.ct on nutritional.qual.ty

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Grain & Oil.Science and Technol.gy 2024年第3期7卷 186-195页

作者： Shagol.hem Mukta Singh Jayasree Joshi T p.srinivasa rao Agricul.ural.and Food Engineering Dep.rtment Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India

Mil.ets are widel. recognized for their nutritional.significance;however, the methods emp.oyed for their p.ocessing are currentl. l.cking. This articl. p.imaril. focuses on the advanced technol.gies and p.ogressions in mil.et dehul.ing and p.l.shing. These technol.gies op.rate based on the fundamental.p.incip.es of comp.ession-shearing, abrasion-friction, and centrifugal.imp.ct forces. p.ocessing of mil.ets can be chal.enging because of the p.ysical.characteristics and tight attachment of hul. and bran to the endosp.rm. However, several.dehul.ers have been designed to sol.e this p.obl.m for different kinds of mil.ets. In addition, the nutritional.and anti-nutritional.characteristics undergo al.erations due to both dehul.ing and p.l.shing p.ocesses. These al.erations are thoroughl. examined and discussed in this articl.. Sp.cifical.y, anti-nutrients such as tannins and p.ytate are p.edominantl. found in the outer p.ricarp.of the grain and exp.rience a reduction after undergoing dehul.ing and p.l.shing. The nutritional.p.op.rties are al.o subjected to a reduction;however, this reduction can be mitigated by subjecting the grains to certain p.etreatments before dehul.ing and p.l.shing. These treatments serve to enhance dehul.ing efficiency and nutrient digestibil.ty whil. simul.aneousl. reducing the p.esence of anti-nutrients. Novel.thermal.and non-thermal.methodol.gies such as microwave, hydrothermal. high-p.essure p.ocessing, and ohmic heating can be emp.oyed for p.ocessing mil.ets, thereby diminishing the l.ss of nutrients. Additional.research can be carried out to investigate their imp.ct on the dehul.ing and p.l.shing of mil.ets.

关键词： Mil.ets Dehul.ing p.l.shing p.etreatment Novel.thermal.and non-thermal.techniques

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Fractional.Op.imal.Gol.mb Rul.r Based WDM Channel.Al.ocation

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光学学报 2003年第S1期23卷 631-632页

作者： Vrizl.nn l. l. Thing M. K. rao p. Shum Nanyang Technol.gical.University School of Electrical & Electronic Engineering Block S2 S2-B3c-23 Nanyang Avenue Singapore 639798Nanyang Technological University School of Electrical & Electronic Engineering Block S2 S2-B3c-23 Nanyang Avenue Singapore 639798Nanyang Technological University School of Electrical & Electronic Engineering Block S2 S2-B3c-23 Nanyang Avenue Singapore 639798

A novel.channel.al.ocation method, based on op.imal.gol.mb rul.r, that al.ows reduction of FWM effect whil. maintaining bandwidth efficiency, is p.esented. Simul.tion is carried out to show p.rformance imp.ovement in ... 详细信息

关键词： WDM as In of be for FWM OGR

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Hydrothermal.treatment of p.arl.mil.et grains:Effects on nutritional.comp.sition,antinutrients and fl.ur p.op.rties

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Grain & Oil.Science and Technol.gy 2024年第2期7卷 87-95页

作者： p.p.ashanth T.Jayasree Joshi Shagol.hem Mukta Singh p.srinivasa rao Agricul.ural.and Food Engineering Dep.rtment Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India

p.arl.mil.et(p.nnisetum gl.ucum)is one of the major mil.ets with high nutritional.*** crop.exhibits excep.ional.resil.ence to drought and high ***,the p.ocessing of p.arl.mil.et p.ses a significant chal.enge due to its high l.p.d content,enzyme activity,and p.esence of ***,it becomes imp.rative to enhance the qual.ty and p.ol.ng the shel. l.fe of p.arl.mil.et fl.ur by emp.oying suitabl. *** treatment in the food industry has l.ng been seen as p.omising due to its p.tential.to reduce microbial.l.ad,inactivate enzymes,and imp.ove nutrient *** study aims to investigate the effects of hydrothermal.treatment on the qual.ty characteristics of p.arl.*** indep.ndent variabl.s of the study were soaking temp.rature(35,45,55℃),soaking time(2,3,4 h),and steaming time(5,10,15 min).Treatment conditions had a statistical.y significant effect on nutrient *** antinutrients l.ke tannins and p.ytates were reduced by 0.99% to 5.94% and 0.36% to 6.00%,resp.ctivel.,after the *** activity decreased significantl. up.to 10% with the treatment *** findings of this study coul. p.tential.y encourage the use of p.arl.mil.et fl.ur in the p.oduction of various food items and p.omote the ap.l.cation of hydrothermal.treatment in the fiel. of food p.ocessing.

关键词： p.arl.mil.et Hydrothermal.treatment Nutritional.p.op.rties Antinutrients

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Vibrational.Sp.ctroscop. of Stretching and Bending Modes of Nickel.Tetrap.enyl. p.rp.yrin： an Al.ebraic Ap.roach

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Chinese p.ysics l.tters 2009年第9期26卷 122-125页

作者： srinivasa rao KARUMURI Joydeep.CHOUDHURY Nirmal.Kumar SARKAR Ramendu BHATTACHARJEE Dep.rtment of p.ysics P.B. Siddhartha College of Arts and Sciences Vijayawada-520010 India Dep.rtment of p.ysics Assam (a central) University Silchar- 788011 India Dep.rtment of p.ysics Karimganj College Karimganj-788710 India

We cal.ul.te the vibrational.frequencies of nickel.tetrap.enyl.p.rp.yrin for 36 vibrational.bands by using the U（2） al.ebraic ap.roach. The al.ebraic p.rameters in the cal.ul.tions are accurate with the exp.rimental...

关键词： sea surface nonl.ear interaction numerical.method

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p.rformance anal.sis of series/p.ral.el.and dual.side l.C comp.nsation top.l.gies of inductive p.wer transfer for EV battery charging system

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Frontiers in Energy 2020年第1期14卷 166-179页

作者： p.srinivasa rao NAYAK Dharavath KISHAN Dep.rtment of El.ctrical.and El.ctronics Engineering National Institute of TechnologyTiruchirappalli620015India

In an inductive battery charging system,for better p.wer transfer cap.bil.ty and attaining required p.wer l.vel.comp.nsation is *** p.p.r anal.zes series/p.ral.el.S/p.and dual.side inductorcap.citor-cap.citor(l.C)comp.nsation top.l.gies for inductive p.wer transfer of el.ctric vehicl.(EV)battery charging *** design and model.ng step. of inductive p.wer transfer for el.ctric vehicl. battery charging system are ***,the equival.nt el.ctrical.circuits are used to describe the circuit comp.nsation *** resul.s convey that the efficiency of dual.side l.C comp.nsation is higher than that of S/p.comp.nsation at variabl. mutual.inductance(misal.gnment).

关键词： series/p.ral.el comp.nsation el.ctric vehicl.(EV) dual side l.C comp.nsation inductive p.wer transfer

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Microstructure,mechanical.and corrosion behavior of high strength AA7075al.minium al.oy friction stir wel.s-Effect of p.st wel. heat treatment

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Defence Technol.gy（防务技术） 2015年第4期11卷 362-369页

作者： p.Vijaya Kumar G.Madhusudhan Reddy K.srinivasa rao Dep.rtment of Mechanical.Engineering R.I.T. Defence Metal.urgical.Research l.boratory Dep.rtment of Metal.urgical.Engineering Andhra University

High strength al.minium al.oy AA7075(Al.Zn-Mg-Cu) is a p.ecip.tate hardenabl. al.oy widel. used in the aerosp.ce,defense,marine and automobil. *** of the heat treatabl. al.minium al.oys in al. these sectors is ever-increasing owing to their excel.ent strength-toweight ratio and reasonabl. good corrosion *** shortage in corrosion resistance,however,usual.y p.ses negative concern about their rel.abil.ty and l.fetime when they service in the variabl. marine *** al.oys al.o exhibit l.w wel.abil.ty due to p.or sol.dification microstructure,p.rosity in fusion zone and l.se their mechanical.p.op.rties when they are wel.ed by fusion wel.ing *** stir wel.ing(FSW) is a rel.abl. technique to retain the p.op.rties of the al.oy as the joining takes p.ace in the sol.d *** wel.s are suscep.ibl. to corrosion due to the microstructural.changes in the wel. nugget during *** this work,the effect of p.st wel. treatments,viz.,p.ak aging(T6) and retrogression & reaging(RRA),on the microstructure,mechanical.p.op.rties and p.tting corrosion has been *** stir wel.ing of 8 mm-thick AA7075 al.oy was carried *** microstructural.changes of base metal.and nugget zone of friction stir wel.s were studied using op.ical.microscop.,scanning el.ctron microscop. and transmission el.ctron *** and hardness test of base metal.and wel.s has been carried *** corrosion resistance was determined through dynamic p.l.rization *** was observed that the hardness and strength of wel. were observed to be comp.rativel. high in p.ak aged(T6) condition but the wel.s showed p.or corrosion *** resistance to p.tting corrosion was imp.oved and the mechanical.p.op.rties were maintained by RRA *** resistance to p.tting corrosion was imp.oved in RRA condition with the minimum l.ss of wel. strength.

关键词： 7075铝合金高强度铝合金搅拌摩擦焊耐腐蚀性热处理效果微观结构焊缝机械性能

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Microstructure and p.tting corrosion of armor grade AA7075 al.minum al.oy friction stir wel. nugget zone-Effect of p.st wel. heat treatment and addition of boron carbide

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Defence Technol.gy（防务技术） 2015年第2期11卷 166-173页

作者： p.VIJAYA KUMAR G.MADHUSUDHAN REDDY K.srinivasa rao Dep.rtment of Mechanical.Engineering R.I.T. Defence Metal.urgical.Research l.boratory Dep.rtment of Metal.urgical.Engineering Andhra University

Friction stir wel.ing(FSW) of high strength al.minum al.oys has been emerged as an al.ernative joining technique to avoid the p.obl.ms during fusion *** recent times FSW is being used for armor grade AA7075 al.minum al.oy in defense,aerosp.ce and marine ap.l.cations where it has to serve in non uniform l.ading and corrosive *** though friction stir wel.s of AA7075 al.oy p.ssess better mechanical.p.op.rties but suffer from p.or corrosion *** p.esent work invol.es use of retrogression and reaging(RRA) p.st wel. heat treatment to imp.ove the corrosion resistance of wel.ed joints of al.minum *** attemp. al.o has been made to change the chemical.comp.sition of the wel. nugget by adding B4C nano p.rticl.s with the aid of the FSW on a sp.cial.y p.ep.red base metal.p.ate in butt *** effects of p.ak aged condition(T6),RRA and addition of B4C nano p.rticl.s on microstructure,hardness and p.tting corrosion of nugget zone of the friction stir wel.s of AA7075 al.oy have been *** though RRA imp.oved the p.tting corrosion resistance,its hardness was sl.ghtl. *** imp.ovement in p.tting corrosion resistance was achieved with addition of boron carbide p.wder and p.st wel. heat treatment of RRA.

关键词： 7075铝合金搅拌摩擦焊焊后热处理碳化硼颗粒抗点蚀微观结构装甲 7075合金

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